Development of a Heading Technique Training Model in Futsal Games for PJKR Students of the 2024 Class of Tadulako University, Palu. COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, [S. l.], v. 18, n. 1, p. 0979–0986, 2026. Disponível em: https://competitor.idjournal.eu/index.php/competitor/article/view/587. Acesso em: 22 feb. 2026.